| 提高液体表面张力系数测量准确度的方法 |
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| 引用本文： | 秦颖,王茂仁,林国强,余虹.提高液体表面张力系数测量准确度的方法[J].物理与工程,2010,20(1):37-39. |
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| 作者姓名： | 秦颖 王茂仁 林国强 余虹 |
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| 作者单位： | 大连理工大学物理与光电工程学院,辽宁,大连,116024 |
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| 摘 要： | 本文给出了提高液体表面张力系数测量准确度的实验方法.通过切削的办法,使得砝码盘的质量小于吊环的质量,保证了电压表的示数都在定标范围之内;通过分析得出为什么在液膜拉断瞬间读取电压值,使得测量更合理,结果更精确.
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| 关 键 词： | 力敏传感器 表面张力系数 液体 |
METHODS TO IMPROVE MEASUREMENT PRECISION OF SURFACE TENSION COEFFICIENT OF LIQUIDS |
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| Qin Ying,Wang Maoren,Lin Guoqiang,Yu Hong.METHODS TO IMPROVE MEASUREMENT PRECISION OF SURFACE TENSION COEFFICIENT OF LIQUIDS[J].Physics and Engineering,2010,20(1):37-39. |
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| Authors: | Qin Ying Wang Maoren Lin Guoqiang Yu Hong |
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| Institution: | School of Physics and Optoelectronic Technology;Dalian University of Technology;Dalian;Liaoning 116024 |
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| Abstract: | This paper introduces a few methods to measure liquid surface tension coefficient with improved precision. The mass of the scale pan was made smaller than the swinging ring by cutting, which guarantees the voltmeter display always fitting the set scale. Analyses show why the voltage value read at the moment of liquid film breaking is appropriate and accurate. |
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| Keywords: | force sensor surface tension coefficient liquid |
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